ALLEGAN COUNTY, MI -- Police have closed southbound U.S. 131 near 100th Street because of jack-knifed semi-truck amid blowing and drifting snow.

Allegan County sheriff's deputies say road conditions across the area are poor because of blowing and drifting snow. Deputies working around Wayland are reporting very poor visibility and numerous slide-offs along U.S. 131.

Police ask motorists to turn on their headlights. They also are asking motorists to call a tow truck with emergency lights in the case of a slide-off and not use private vehicles and tow straps because of the need for emergency lighting.

On the west side of Allegan County, 58th Street south of Holland between 136th and 139th avenue is shutdown to remove drifted snow.

Police say the blowing snow is causing white-out conditions in some areas.